C++ - Software Engineer, AI
Company: G2i Inc.
Location: San Juan, PR (Remote)
Salary: $30 - $70 an hour
Type: Full-time
Remote: Yes
Posted: 2026-04-16
About this role
Before applying
This role is open to contractors in accepted locations only. Please confirm your country is on the list before applying — we're unable to process applications from unlisted locations. List of accepted countries and locations.
For US applicants
This is a 1099 independent contractor role. It is not compatible with F-1 OPT, STEM OPT, or any visa status that requires W-2 employment, guaranteed hours, or employer sponsorship.
We are unable to provide offer letters or employment verification for this role.
## What You'll Be Doing
Help train large language models (LLMs) to write production-grade code across a wide range of programming languages:
- Compare and rank multiple code snippets, explaining which is best and why
- Repair and refactor AI-generated code for correctness, efficiency, and style
- Inject feedback (ratings, edits, test results) into the RLHF pipeline and keep it running smoothly
End result: the model learns to propose, critique, and improve code the way you do.
RLHF in one line: Generate code expert engineers rank, edit, and justify convert that feedback into reward signals reinforcement learning tunes the model toward code you'd actually ship.
## What You'll Need
- 3+ years of professional software engineering experience in C++ (constraint programming experience is a bonus, but not required)
- Strong code-review instincts — you can spot logic errors, performance traps, and security issues quickly
- Extreme attention to detail and excellent written communication skills. Much of this role involves explaining **why** one approach is better than another. This cannot be overstated.
- Comfortable reading documentation and language specs, and able to work well in an asynchronous, low-oversight environment
Identity verification: Applicants will be required to verify their identity and confirm they have valid documentation to work as an independent contractor in their country of residence.
## **What You Don...